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XVIIL

Contents.

Locomotive Boiler-shop .......

Marine Boiler-shop......

Ship Yard.........

Pneumatic Caulker and other Tools       ....

Electric Welding........

Description of Boilers: Lancashire, Marine, Locomotive,

Tubulous, and Vertical......

Geometry        .  '   -.

Setting-out a Marine Boiler......

Riveting the Boiler........

Setting-out other Boilers......

PART  IL—THEORY  AND   EXAMPLE

Synopsis of Lettering

CHAPTER VIIL

STRENGTH OF MATERIALS, STRUCTURES, AND MACH
PARTS.

Stress, Strain, and Elasticity.....

Work Diagram........

Stress due to Impulsive Load, and to Heat   .

Testing Machines........

Intensifier........

Shackles for Specimens.......

Strain Measuring   ........

Stress-strain Diagrams   .......

Wohler's Law and Factor of Safety       ....

Table of Stresses for Different Materials       .       .       «

Classification of Stress-action.....

Tension Stress-action:—

Ropes, Pipes and Cylinders, Flywheel, Bolts, &c. ,
Compressive Stress-action . . . . . i
Shear Stress-action :—

Suspension   Link,   Riveted  Joints,   Cotter   Joint
Shafts, Coupling Bolts, Keys, Springs   .